# File lib/phusion_passenger/plugin.rb, line 83
        def call_hook(name, *args, &block)
                last_result = nil
                if @instances
                        @instances.each do |instance|
                                if instance.respond_to?(name.to_sym)
                                        last_result = instance.__send__(name.to_sym, *args, &block)
                                end
                        end
                end
                return last_result
        end